Fig. 2: Within-web predator-prey biomass scaling among ecosystem types.
From: Consistent predator-prey biomass scaling in complex food webs
a–c Each data point is a different predator node and the total biomass of its prey within a food web (dashed line represents the 1:1 line). The fitted lines represent the mean power-law exponents for each ecosystem type: a n = 30 food webs; b n = 41 food webs; c n = 45 food webs. (Separate plots for each food web are shown in Figs. S1–S3). d–f The distribution of power-law exponents among food webs yields an average (solid line) that is statistically indistinguishable between ecosystem types and is close to ¾. Power law exponents and 95% confidence intervals (dashed lines) were determined from linear-mixed effects modelling (Table S3).
